﻿using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
using System.Reflection;
using System.IO;
using System.Diagnostics;

namespace template_dll
{
        public partial class ChildForm : Form
    {
        public ChildForm()
        {
            InitializeComponent();
        }
        public DataTable FiltFormShow(string formname, string flname, string sort, DataTable dt)
        {
            PharmFilter.PharmFilter f = new PharmFilter.PharmFilter();
            f.Name = formname;
            f.dataGridView1.DataSource = dt.DefaultView;
            f.namechcol = flname;
            f.sortcoumn = sort;
            f.ShowDialog();
            f.Close();
            f = null;
            return dt;
        }

        private SqlDataReader ProcSel(SqlConnection con, string procname)
        {
            SqlCommand com = con.CreateCommand();
            com.CommandType = CommandType.StoredProcedure;
            com.CommandText = procname;
            if (con.State == ConnectionState.Closed) con.Open();
            return com.ExecuteReader();
        }

        private const string namechcol = "Флаг";
        private SqlConnection conn;
        private DataTable dt_rep;
        private delegate void Deleg();
        private Deleg del;
        private DataTable dt_pharm = new DataTable();
        private DataTable dt_suppl = new DataTable();
        private DataTable pharm = new DataTable();
        private DataTable suppl = new DataTable();
        private DateTime date_b;
        private DateTime date_e;

        public static bool DisplayForm(System.Windows.Forms.Form theMDIParent)
        {
            ChildForm f = new ChildForm();
            f.MdiParent = theMDIParent;
            f.WindowState = FormWindowState.Maximized;
            f.Show();
            return true;
        }

        private string GetServ(string filename)
        {
            string str = "";
            using (StreamReader streamReader = new StreamReader(filename))
            {
                while (!streamReader.EndOfStream)
                {
                    str += streamReader.ReadLine();
                }
            }
            return str;
        }

        private void ChildForm_Load(object sender, EventArgs e)
        {
            conn = new SqlConnection(@"Server=" + GetServ("serv.txt") + ";Database=PharmOLAPDW;Integrated Security=True");
            dt_suppl = new DataTable();
            dt_suppl.Load(ProcSel(conn, @"pas_SupplSel"));
            foreach (DataColumn dc in dt_suppl.Columns)
            {
                if (dc.ColumnName != "Флаг") dc.ReadOnly = true;
                else dc.ReadOnly = false;
            }
            dateTimePicker1.Value = DateTime.Now.AddDays(-8);
            dateTimePicker2.Value = DateTime.Now.AddDays(-1);
            date_b = dateTimePicker1.Value;
            date_e = dateTimePicker2.Value;
        }

        private void StartCreateRep(object sender, EventArgs e)
        {
            dataGridView1.DataSource = null;
            dt_rep.Clear();
            del = new Deleg(CreateRep);
            this.Text += " Формируется";
            IAsyncResult asyncRes = del.BeginInvoke(new AsyncCallback(CallBackFunc), null); //
            panel1.Enabled = false;
            dataGridView1.Enabled = false;
        }

        private void CallBackFunc(IAsyncResult aRes)
        {
            del.EndInvoke(aRes);
            panel1.Invoke((Func<bool>)(() => panel1.Enabled = true));
            dataGridView1.Invoke((Func<bool>)(() => dataGridView1.Enabled = true));
            this.Invoke((Func<string>)(() => this.Text = this.Text.Replace(" Формируется", "")));
            dataGridView1.Invoke((Func<object>)(() => dataGridView1.DataSource = dt_rep.DefaultView));
        }

        private void CreateRep()
        {
            pharm = null;
            suppl = null;
            pharm = new DataTable();
            suppl = new DataTable();
            pharm.Columns.Add();
            suppl.Columns.Add();
            if (conn.State == ConnectionState.Closed) conn.Open();
            try
            {
                foreach (DataRow row in dt_pharm.Rows)
                {
                    if (Convert.ToBoolean(row[namechcol]))
                    {
                        pharm.Rows.Add(row[1]);
                    }
                }

                foreach (DataRow row in dt_suppl.Rows)
                {
                    if (Convert.ToBoolean(row[namechcol]))
                    {
                        suppl.Rows.Add(row[1]);
                    }
                }

                SqlStorProc.sp_params[] par = new SqlStorProc.sp_params[4];
                par[0].name = "@date_b";
                par[0].value = date_b;
                par[1].name = "@date_e";
                par[1].value = date_e;
                par[2].name = "@pharm";
                par[2].value = pharm;
                par[3].name = "@suppl";
                par[3].value = suppl;
                dt_rep = (new SqlStorProc()).SqlProcExecWithQueryOneTable(conn, "pas_DAC_OutAZ", 300, par);
                conn.Close();

                

            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
                conn.Close();
            }

        }

        private SqlDataReader RepProc(SqlConnection sqlcon)//метод для вызова хранимки
        {
            SqlCommand sqlcom = sqlcon.CreateCommand();
            sqlcom.CommandType = CommandType.StoredProcedure;
            sqlcom.CommandText = @"sp_name"; //имя хранимой процедуры
            sqlcom.CommandTimeout = 300;

            return sqlcom.ExecuteReader();
        }

        private void ExpToExcel(object sender, EventArgs e)
        {
            SaveFileDialog sfd = new SaveFileDialog();
            sfd.FileName = "csv-file";
            sfd.Filter = "Файл CSV | *.csv";
            if (sfd.ShowDialog() == DialogResult.OK)
            {   
                SaveDGVToCSVfile(sfd.FileName.ToString(), dataGridView1, true);
            }
        }

        public static bool SaveDGVToCSVfile(string filename, DataGridView table, bool openInExcel)
        {
            try
            {
                StreamWriter sw = new StreamWriter(filename, false, Encoding.Unicode);

                List<int> col_n = new List<int>();
                foreach (DataGridViewColumn col in table.Columns)
                    if (col.Visible)
                    {
                        sw.Write(col.HeaderText + "\t");
                        col_n.Add(col.Index);
                    }
                sw.WriteLine();
                int x = table.RowCount;
                if (table.AllowUserToAddRows) x--;

                for (int i = 0; i < x; i++)
                {
                    for (int y = 0; y < col_n.Count; y++)
                        sw.Write(table[col_n[y], i].Value + "\t");
                    sw.Write(" \r\n");
                }
                sw.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка!", MessageBoxButtons.OK, MessageBoxIcon.Stop);
                return false;
            }

            if (openInExcel)
            {
                try
                {
                    Process newProc = Process.Start("excel.exe", "\"" + filename + "\"");
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message, "Ошибка!", MessageBoxButtons.OK, MessageBoxIcon.Stop);
                }
            }
            return true;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //- Фильтр по аптекам
            dt_pharm = null;
            try
            {
                PharmFilter.PharmFilter f3 = new PharmFilter.PharmFilter();

                if (dt_pharm == null)
                {
                    SqlCommand myCommand = conn.CreateCommand();
                    myCommand.CommandType = CommandType.StoredProcedure;
                    myCommand.CommandText = @"pas_PharmSel";
                    if (conn.State == ConnectionState.Closed) conn.Open();
                    dt_pharm = new DataTable();
                    dt_pharm.Load(myCommand.ExecuteReader());
                    foreach (DataColumn dc in dt_pharm.Columns)
                    {
                        if (dc.ColumnName != namechcol) dc.ReadOnly = true;
                        else dc.ReadOnly = false;
                    }
                    conn.Close();
                }
                f3.namechcol = namechcol;
                f3.Text = "Фильтр по аптекам";
                f3.sortcoumn = "Аптека";
                f3.dataGridView1.DataSource = dt_pharm.DefaultView;
                f3.ShowDialog();
                listBox1.Items.Clear();
                foreach (DataRow dr in dt_pharm.Rows)
                {
                    if (Convert.ToBoolean(dr[namechcol]) == true)
                    {
                        listBox1.Items.Add(dr[f3.sortcoumn]);
                    }
                }
                if (listBox1.Items.Count == 0) listBox1.Items.Add("(Все аптеки)");
                f3.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }

        }

        private void button2_Click(object sender, EventArgs e)
        {
            //- Фильтр по поставщикам
            int fl = 0;
            listBox2.Items.Clear();
            dt_suppl = FiltFormShow("Поставщики", namechcol, "Поставщик", dt_suppl);
            fl = 0;
            foreach (DataRow dr in dt_suppl.Rows)
            {
                if (Convert.ToBoolean(dr["Флаг"]))
                {
                    fl++;
                    listBox2.Items.Add(dr["Поставщик"].ToString());
                }
                if (listBox2.Items.Count == 0) listBox2.Items.Add("(Все поставщики)");
            }
        }

        private void button3_Click(object sender, EventArgs e)
        {
            //- Сформировать отчёт
            try
            {
                dataGridView1.DataSource = null;
                CreateRep();
                dataGridView1.DataSource = dt_rep.DefaultView;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }
        }

        private void button4_Click(object sender, EventArgs e)
        {
            //- Экспорт в Excel
            ExpToExcel ex = new ExpToExcel();
            ex.ExportToExcel(dataGridView1);
        }

        private void dateTimePicker1_ValueChanged(object sender, EventArgs e)
        {
            //- Дата начала
            date_b = dateTimePicker1.Value;
        }

        private void dateTimePicker2_ValueChanged(object sender, EventArgs e)
        {
            //- Дата окончания периода
            date_e = dateTimePicker2.Value;
        }



    }
}
